Project portfolio growth with recurring contributions, fees, taxes, inflation, and Buffett-style compounding tables.
Run the calculator to generate projections.
This calculator models compounding period-by-period, so you can see exactly how growth builds over time. It includes recurring contributions, contribution timing, tax drag, fee drag, and inflation-adjusted purchasing power.
Step 1
Start with your principal, yearly return, and horizon.
Step 2
Apply net return after taxes and fees, then compound at your selected frequency.
Step 3
Add recurring contributions at the beginning or end of each period.
Step 4
Produce nominal value, real (inflation-adjusted) value, milestones, and Buffett-style tables.
“My wealth has come from a combination of living in America, some lucky genes, and compound interest.”Warren Buffett
If $1 compounds at 20% for 50 years, it grows to roughly $9,100. That is why long holding periods matter more than short-term market timing.
The matrix in this calculator lets you compare that same long-horizon effect across multiple rates side by side.